Top 10+ Flutter App Development Companies in London | Flutter App Developers London 2026
Last Updated 15th August 2026 | Category: Top App Development FirmsThe List of Top 10+ Flutter App Development Companies In London | Top Flutter App Developers London August 2026
1. Hyperlink InfoSystem
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Details
| Founded: | 2011 |
|---|---|
| Hourly Rates: | < $25 |
| Employees: | 1000+ |
| Avg. Project Cost: | GBP 75,836+ |
| Ratings: |
5.0
497 Reviews
|
At Hyperlink InfoSystem, they take treasure in serving their strong company culture. They have an experienced equipment of technical professionals that have expertise in the advanced mobile & web technologies, allowing varied information technology solutions to their global business clients. They have many skills & processes that have affected their success. Their aim is to see all their marketing partners get result & set themselves aside from others. Their team members have the skills and technical expertise to beat all of your expectations. They provide the greatest quality mobile app development services at affordable rate. They are always one step forward to make new plans for the future with the help of the new technology.
Details
| Founded: | 1997 |
|---|---|
| Hourly Rates: | $50 - $99 |
| Employees: | 10 - 49 |
| Avg. Project Cost: | GBP 75,836+ |
| Ratings: |
4.5
7 Reviews
|
Red C is an award-winning software development company. They know that applications are the prospect of business so they offer wide range services to use the internal running of your company. Their team is committed saving your company extensive amounts of time and money. It has a very friendly and responsive staff. Their consultative way gives equal, strategic advice that tries to enhance & grow your business with a digital solution.
Details
| Founded: | 2016 |
|---|---|
| Hourly Rates: | $50 - $99 |
| Employees: | 10 - 49 |
| Avg. Project Cost: | GBP 37,918+ |
| Ratings: |
4.1
7 Reviews
|
It is the best mobile app development company in London. Their team has been developing outstanding mobile apps for years at their mobile app business in London, and in that time they have developed a unique process which enables them to provide the crucial quality outcomes in the most practical time. They assure that their delivery model is easy to understand, leaving you to concentrate on the idea itself and the delivery to us.
Details
| Founded: | 2010 |
|---|---|
| Hourly Rates: | N/A |
| Employees: | 10 - 49 |
| Avg. Project Cost: | GBP 7,584+ |
| Ratings: |
4.8
6 Reviews
|
Established in 2011, it began with the aim how they think about mobility. They desired to help people know the power they had to totally transform their enterprise, from top to base, easily by checking the power of the device they allowed in the pockets each and every day. Their clients different in demand, however, their work always continues to a very high standard.
Details
| Founded: | 2015 |
|---|---|
| Hourly Rates: | $150 - $199 |
| Employees: | 2 - 9 |
| Avg. Project Cost: | GBP 1,895,888+ |
| Ratings: |
4.6
7 Reviews
|
The Munro Agency is a mobile app development company. They help bridge the gap between sales and marketing by delivering focused campaigns and helping your company to produce sales-ready leads. The Munro Agency works with a number of multinational companies as well as local small to medium size enterprises. They assure you get found online and get more leads all the while building new and incremental revenues streams for you and your business.
Details
| Founded: | 2009 |
|---|---|
| Hourly Rates: | N/A |
| Employees: | 10 - 49 |
| Avg. Project Cost: | GBP 3,791,775+ |
| Ratings: |
4.8
7 Reviews
|
It is specialists in designing & developing best mobile apps They help their clients to grow in a mobile world. From developing app solutions that enhance operational performance. They work in partnership with their clients, usually employing a co-creation way, and enjoy making and maintaining strong relationships with them.
Details
| Founded: | 2017 |
|---|---|
| Hourly Rates: | $50 - $99 |
| Employees: | 10 - 49 |
| Avg. Project Cost: | GBP 3,791,775+ |
| Ratings: |
4.4
6 Reviews
|
Their team takes over a decade of great experience in the field of mobile app development. They have designed a seamless & integrated software development and implementation process for retail & corporate banking services. They take an individualized preferably than a one size fits all approach for every one of our clients. Their team has great experience in helping digital transformation look at different financial objects from large banks to new startups.
Details
| Founded: | 2010 |
|---|---|
| Hourly Rates: | N/A |
| Employees: | 2 - 9 |
| Avg. Project Cost: | GBP 3,791,775+ |
| Ratings: |
4.8
6 Reviews
|
They are a creative web and mobile app development company in Liverpool. They develop responsive websites for desktop, laptop, tablet, and smartphone. They work with companies to develop effective and user-friendly websites and mobile apps. You will have an efficient and streamlined tool for direct marketing and a powerful means of making revenue from your existing customers.
Details
| Founded: | 2007 |
|---|---|
| Hourly Rates: | N/A |
| Employees: | 10 - 49 |
| Avg. Project Cost: | GBP 37,918+ |
| Ratings: |
4.7
8 Reviews
|
As a highly-motivated creative & digital company, they provide amazing digital services that are both expertly crafted. They understand that effective communication is crucial to a success of any project. They built a productive customer information environment providing all the required resources. Their expert team can work with you to reach your goals. It is one of the best mobile app development company.
Details
| Founded: | 2007 |
|---|---|
| Hourly Rates: | $100 - $149 |
| Employees: | 10 - 49 |
| Avg. Project Cost: | GBP 7,584+ |
| Ratings: |
4.8
6 Reviews
|
They are a web and mobile app development company. They work closely with clients at every stage from analysis to deliver to make sure some solution matches their clients' perfect requirements with the ability to scale & adapt in the future. All their projects are conducted using conventional patterns & practices to assure quality & texture. App quality is an initial factor which cannot be achieved without complete dedication.
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Got questions about our specialized technology solutions? We have the answers to help you make informed decisions.
Start by writing down what "done" actually looks like for your project — the core features, the platforms it needs to run on, and a rough budget ceiling. From there, narrow your list to App Development agencies in London whose past work matches that scope, and put each one through the same first conversation: a real problem from your project, presented cold, to see how they think rather than how they pitch. The App Development company in London that asks the sharpest follow-up questions is usually the one worth a second meeting.
Working with a App Development company in London usually comes down to a straightforward trade: strong technical talent at a price point that's hard to match in higher-cost markets, without the coordination overhead of a fully remote, no-local-presence vendor. Teams based in London tend to understand both the practicalities of international client work and the local hiring market, which shows up in smoother onboarding and fewer surprises around contracts and invoicing.
The firms that rank well among App Development companies in London typically have verifiable client references, a track record of finished (not just started) projects, relevant certifications, and consistently positive feedback across multiple engagements — not just one standout case study. Self-reported claims with nothing to back them up carry little weight here; documented outcomes do.
Yes — you can filter App Development companies in London by budget range, hourly rate, team size, and area of specialization before reaching out to anyone. Pairing those filters with review scores usually gets you to a realistic shortlist in a few minutes instead of manually working through every listing in the category.
Skip past the summary and go straight to the portfolio examples, the full text of client reviews (not just the star rating), and how long the company has been operating. Reviews that mention specific, measurable results — a faster checkout flow, a successful migration, fewer support tickets — tell you far more than generic praise. It's also worth checking whether the App Development firm in London responds to reviews at all, since that habit tends to mirror how they handle feedback during an actual project.
Bring a real problem from your own project to a discovery call and see how the team engages with it — the quality of their follow-up questions tells you more than any slide deck. Ask to see actual code from past work, not just screenshots of the finished product, and look for evidence of technical writing, open-source contributions, or conference talks, which are harder to fake than a polished portfolio page. A App Development company in London with genuine depth won't be shy about any of this.
It depends on your business goals, but a App Development company in London that's serious about outcomes will tie their KPIs to yours — activation rate, feature adoption, conversion, churn, revenue per user — rather than reporting on generic delivery metrics like story points closed. Get analytics wired in from the start so there's a real feedback loop between what gets built and what actually moves the business, and agree on which numbers matter before the project kicks off.
Most experienced App Development companies in London have done this kind of integration many times over — Salesforce, HubSpot, Zoho, and similar platforms are common enough that it's rarely a novel problem. What matters more is giving your App Development partner in London a full, honest picture of your current stack upfront, so the integration is built cleanly instead of patched together after the fact.
Platforms like Clutch and GoodFirms are a good starting point, since they require some independent validation of the work described. A strong case study from a App Development company in London spells out the original problem, what was actually built, and a measurable result — not just a screenshot and a paragraph of praise. Match case studies to your own industry and scale wherever you can; a great result in an unrelated space tells you less than it seems to.
The sweet spot for value tends to be mid-size App Development companies in London — big enough to have real process and accountability, small enough to keep overhead (and therefore price) reasonable. These firms usually can't compete with large agencies on brand name, so they compete on transparent, milestone-based pricing and a portfolio that speaks for itself. Ask to see completed work at roughly your budget level before assuming a firm is a fit.
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